[PATCH 1/6] Add strbuf_rtrim and strbuf_insert.
* strbuf_rtrim removes trailing spaces.
* strbuf_insert insert data at a given position.
Signed-off-by: Pierre Habouzit <madcoder@debian.org>
---
strbuf.c | 18 ++++++++++++++++++
strbuf.h | 6 ++++++
2 files changed, 24 insertions(+), 0 deletions(-)
diff --git a/strbuf.c b/strbuf.c
index 7136de1..2643ce1 100644
--- a/strbuf.c
+++ b/strbuf.c
@@ -28,6 +28,24 @@ void strbuf_grow(struct strbuf *sb, size_t extra) {
ALLOC_GROW(sb->buf, sb->len + extra + 1, sb->alloc);
}
+void strbuf_rtrim(struct strbuf *sb)
+{
+ while (sb->len > 0 && isspace((unsigned char)sb->buf[sb->len - 1]))
+ sb->len--;
+ sb->buf[sb->len] = '\0';
+}
+
+void strbuf_insert(struct strbuf *sb, size_t pos, const void *data, size_t len) {
+ strbuf_grow(sb, len);
+ if (pos >= sb->len) {
+ sb->len = pos;
+ } else {
+ memmove(sb->buf + pos + len, sb->buf + pos, sb->len - pos);
+ }
+ memcpy(sb->buf + pos, data, len);
+ strbuf_setlen(sb, sb->len + len);
+}
+
void strbuf_add(struct strbuf *sb, const void *data, size_t len) {
strbuf_grow(sb, len);
memcpy(sb->buf + sb->len, data, len);
diff --git a/strbuf.h b/strbuf.h
index b40dc99..b90cbdf 100644
--- a/strbuf.h
+++ b/strbuf.h
@@ -68,6 +68,9 @@ static inline void strbuf_setlen(struct strbuf *sb, size_t len) {
extern void strbuf_grow(struct strbuf *, size_t);
+/*----- content related -----*/
+extern void strbuf_rtrim(struct strbuf *);
+
/*----- add data in your buffer -----*/
static inline void strbuf_addch(struct strbuf *sb, int c) {
strbuf_grow(sb, 1);
@@ -75,6 +78,9 @@ static inline void strbuf_addch(struct strbuf *sb, int c) {
sb->buf[sb->len] = '\0';
}
+/* inserts after pos, or appends if pos >= sb->len */
+extern void strbuf_insert(struct strbuf *, size_t pos, const void *, size_t);
+
extern void strbuf_add(struct strbuf *, const void *, size_t);
static inline void strbuf_addstr(struct strbuf *sb, const char *s) {
strbuf_add(sb, s, strlen(s));
--
1.5.3.1
Pierre Habouzit <madcoder@debian.org>